NO. 1866. XEW 8AWFLIES IN U. S. NATIONAL MUSEUM— ROHWER. 409 



antennge somewhat flattene'd, about two-tliirds as long as the 

 insect, the third joint longer than the fourth; mesoscutum shining, 

 finely punctured ; scutellum opaque, finely granular; stigma broadest 

 at base, tapering to the apex; the third cubital cell about twice as 

 broad at the apex as at the base, receiving the transverse radius near 

 the apex; sheath straight above, subtruncate, rounded below. 

 Black; labrum, seventh to the ninth antennal joints, tegulse, apex of 

 the coxse and trochanters, and the posterior tarsi white; mandibles 

 clypeus, supraclypeal area, two basal joints of the antennge, pre- 

 scutum, scutellum, angles of the pronotum, the legs below the tro- 

 chanters, and the abdomen beyond the basal plates rufo-ferruginous 

 or ferruginous. Wings hyaline, iridescent; venation dark brown, 

 stigma at the base white. 



Male, — Very like the female. The antennae are entirely ferru- 

 ginous. The hypopygidium is broadly rounded apically. The 

 clypeus is in some specimens nearly white. 



Two paratopotypes show that the species may vary thus: The 

 base of the third antennal joint may be pale, the white of the antennae 

 may not be sharply defined but shaded into brown at either end, and 

 the mesoepisternum may have a rufous spot. 



North Fork of Swannanoa River, Black Mountains, North Caro- 

 lina. Three females collected in late May, 1910, by F. Sherman. 

 Five females and seven males collected in late May by N. Banks. 



Type.— Cat. No. 14013, U.S.N.M. 



Paratypes in the collection of the North Carolina Department of 

 Agriculture and in the collection of N. Banks. 



Genus TENTHREDINA Rohwer. 

 TENTHREDINA CYLINDRICA, new species. 



Related to TentJiredo fortunii Kirby and Tenthredo smithii Kirby, 

 which from the figures seem to belong to Tenthredina, but does not 

 agree in all points with the description of these species. 



Female. — Length 15 mm. Labrum longer than broad, obtusely 

 pointed, margined; clypeus arcuately emarginate, lobes obtusely 

 rounded, head shining; postocellar area much broader than the 

 cephal-caudad length, well defined, not as wide as the postocellar 

 line is long; ocelli m a low triangle, the area in front of the ocelli 

 rather swollen; middle fovea with rounded walls, open above and 

 joining with a depression from the anterior ocellus; antennae wanting 

 beyond the second joints in the type; mesonotum, mesopleurae and 

 scutellum shining, with separate distinct punctures; scutellum 

 strongly elevated; third cubital cell subequal in length with the first 

 and second; sheath rather narrow, parallel-sided, the apex obliquely 

 truncate. Rufo-ferruginous, varied with black and yellow; clypeus, 

 labrum, mandibles (apicies piceous), most of face, lower part of poste- 



